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DiabloSport Trinity Economic Tune?

2K views 4 replies 4 participants last post by  kyle.jg 
#1 ·
I'm going on a long road trip tomorrow with my 5.7 HEMI and I'd love to have the better fuel economy over performance for this trip to help save some cash. Is there a tune that exists that improves fuel economy rather than boosting performance? Or does the default 87 performance tune improve fuel economy over a stock tune?
 
#3 ·
I think the 91 tune and a light foot would result in best mpg.
 
#5 ·
Thanks guys. I didn't have a chance to check back before my trip but I found that I dropped to about 10.5 L/100KM compared to my previous trip which dropped to about 12. Unfortunately, I don't think the extra 8 cents per litre to get 89 octane is worth the difference I would have got, especially since I went somewhere where gas was already 15 cents per litre more than in my city.
 
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